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United States Patent | 5,190,605 |
Holroyd ,   et al. | March 2, 1993 |
Apparatus comprising a former used in the manufacture of tires. Two green covers (52, 53) devoid of sidewalls for pneumatic tires are assembled and shaped side-by-side. The two covers (52, 53) may be joined together during assembly but separated during manufacture.
Inventors: | Holroyd; Eric (Knutsford, GB); Wright; Anthony R. (Southport, GB) |
Assignee: | Bridgestone/Firestone Inc. (Akron, OH) |
Appl. No.: | 762810 |
Filed: | September 20, 1991 |
Nov 13, 1987[GB] | 8726624 |
Current U.S. Class: | 156/128.1; 156/110.1; 156/123; 156/133; 156/398; 156/415; 156/416 |
Intern'l Class: | B29D 030/24 |
Field of Search: | 156/414,415,416-420,421.2,398,396,394.1,123,130,132,133,128.1,110.1 |
3862871 | Jan., 1975 | Held et al. | |
4190482 | Feb., 1980 | Yabe | 156/414. |
4243451 | Jan., 1981 | Kortman | 156/133. |
4685992 | Aug., 1987 | Irie. | |
4753707 | Jun., 1988 | Crombie | 156/396. |
Foreign Patent Documents | |||
2917219 | Nov., 1980 | DE. | |
2448429 | Sep., 1980 | FR. | |
2179307 | Mar., 1987 | GB. |